ABB RELION 670 Series Applications Manual page 192

Section 7
Current protection
7.8.3 Setting guidelines
GlobalBaseSel : Selects the global base value group used by the function to define ( IBase ), ( VBase )
SBase ).
and (
Operation : With the parameter Operation the function can be set Enabled / Disabled .
Mode : The voltage and current used for the power measurement. The setting possibilities are
shown in table 33.
Table 33:
Set value
A, B, C
Arone
PosSeq
AB
BC
CA
A
B
C
The function has two stages that can be set independently.
With the parameter
186
Complex power calculation
Mode
OpMode1(2) the function can be set Enabled / Disabled .
Formula used for complex power calculation
* *
= × + × +
S V I V I
A A B B
EQUATION2055-ANSI V1 EN-US
*
= × - ×
S V I V I
AB A BC
EQUATION2056-ANSI V1 EN-US
*
= × ×
S 3 V I
PosSeq PosSeq
EQUATION2057-ANSI V1 EN-US
* *
= × -
S V ( I I )
AB A B
EQUATION2058-ANSI V1 EN-US
* *
= × -
S V ( I I )
BC B C
EQUATION2059-ANSI V1 EN-US
* *
= × -
S V ( I I )
CA C A
EQUATION2060-ANSI V1 EN-US
*
= × ×
S 3 V I
A A
EQUATION2061-ANSI V1 EN-US
*
= × ×
S 3 V I
B B
EQUATION2062-ANSI V1 EN-US
*
= × ×
S 3 V I
C C
EQUATION2063-ANSI V1 EN-US
1MRK 505 337-UUS A
*
×
V I
C C
(Equation 45)
*
C
(Equation 46)
(Equation 47)
(Equation 48)
(Equation 49)
(Equation 50)
(Equation 51)
(Equation 52)
(Equation 53)
Application manual
SEMOD172134-4 v7